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Summary: The dynamics of developmental system drift in the gene network
underlying wing polyphenism in ants: a mathematical model
Marcos Nahmad,a,1 Leon Glass,b and Ehab Abouheifc,Ã
a
Department of Physics, McGill University, Montreal, Quebec H3A 2T8, Canada
b
Department of Physiology, McGill University, Montreal, Quebec H3A 1Y6, Canada
c
Department of Biology, McGill University, Montreal, Quebec H3A 1B1, Canada
ÃAuthor for correspondence (email: ehab.abouheif@mcgill.ca)
1
Present address: Department of Control and Dynamical Systems, California Institute of Technology, Pasadena, CA 91125, USA.
SUMMARY Understanding the complex interaction
between genotype and phenotype is a major challenge of
Evolutionary Developmental Biology. One important facet of
this complex interaction has been called ``Developmental
System Drift'' (DSD). DSD occurs when a similar phenotype,
which is homologous across a group of related species, is
produced by different genes or gene expression patterns in
each of these related species. We constructed a mathematical
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